HPMC for Self Leveling Compound Additives
China Reliable Manufacturer - Self Leveling Compound Additives Solutions
In self-leveling compound (SLC) formulations, Hydroxypropyl Methyl Cellulose (HPMC) is the primary rheology modifier responsible for water retention, open time extension,
and anti-sagging performance. Unlike redispersible polymer powders that mainly affect adhesion and flexibility, HPMC directly governs how the fresh mortar flows, self-levels, and cures without cracking or shrinkage.
Landercoll® HPMC grades (K04–K5 viscosity range) are engineered specifically for cement- and gypsum-based self-leveling systems, with cold-water solubility and consistent viscosity build to support stable dosing in continuous mixing lines.
Recommended Viscosity Grade by Application
| Application | Recommended Grade | Why |
|---|---|---|
| Thin-Layer Floor Leveling (2–5mm) | HPMC K04 | Lower viscosity for high flowability, fast self-leveling on smooth substrates |
| Standard Floor Leveling Systems (5–20mm) | HPMC K04–K5 | Balanced flow and open time for general commercial/residential use |
| Underfloor Heating Substrate Preparation | HPMC K5 | Higher viscosity resists sagging around heating pipes during pour |
| Industrial & Commercial Flooring (heavy pour) | HPMC K5 | Anti-sedimentation critical for thick pours with heavier aggregate loading |
| Cement-Based Underlayments | HPMC K04–K5 (dosage-dependent) | Adjustable via dosage rather than grade switch for cost optimization |
Dosage Note: Excessive HPMC dosage beyond 0.3% can over-retard setting time and reduce early strength. Landercoll’s technical team provides mix design support to balance flow performance with cure schedule requirements for your specific substrate and pour thickness.
Selection Guide: Technical Parameters & Dosage
Landercoll® Cellulose Ether
| Parameter | HPMC K04 | HPMC K5 |
|---|---|---|
| Viscosity (2%, mPa·s) | 400 | 3,000–5,000 |
| Recommended Dosage (%) | 0.10–0.15 | 0.15–0.30 |
| Particle Size (mesh) | 80–100 | 80–100 |
| Gel Temperature (°C) | 58–64 | 58–64 |
| Water Retention (%) | ≥95 | ≥98 |
| Typical Open Time Extension | 15–20 min | 20–30 min |
HPMC's Functional Role in Self-Leveling Systems
Water Retention
Flow Time Control
Anti-Sagging & Sedimentation Resistance
Air Entrainment Management
Consistency Across Batches
Try Our FREE Samples!
LANDU, cellulose Ethers Supplier from China, experience our products firsthand with a FREE sample!
- Sample Size: 200g or 400g.
- Shipping: Fast via FedEx or DHL.
- Service: Expert formula adjustment support.
Packaging and Size
We package additives in paper bags with plastic liners to provide extra protection. Please keep the product sealed and store it in a cool, dry place, away from moisture, direct sunlight, and sources of ignition.
Why choose LANDU?
Trusted Construction Additives manufacturer for global mortar producers.
One-Stop Sourcing, Simplified
All seven essential additives from a single supplier means fewer purchase orders, simplified logistics, and consistent quality across your entire formulation. No need to coordinate multiple vendors.
Application-Driven R&D
In-house R&D center and application laboratory means we don't just sell powders — we help you optimize your formulation. If you're developing a new self-leveling compound or UHPC mix, we work with you to fine-tune the additive package.
Manufactured in Scale
Three fully automated facilities with DCS & SIS-controlled systems ensure batch-to-batch consistency — critical when your production runs 24/7. ISO 9001, REACH, and ECOVADIS certified.
Global Experience
Trusted by partners across 60+ countries. Not a startup, not a trader — a manufacturer with proven export experience and regulatory compliance for international markets.
Cellulose Ethers Additives Supplier with Good Reputation
Landercoll® has been a trusted name in cellulose ether manufacturing for years, backed by three production bases equipped with state-of-the-art facilities. Our manufacturing process features 16 horizontal reactors and 4 vertical reactors ensuring high-capacity, consistent output, alongside a DCS (Distributed Control System) for fully automated production and an SIS (Safety Instrumented System) for real-time process safety.
ISO 9001 and EU REACH certification
Explore LANDU’s trusted chemical products, exported to over 60 countries worldwide. Benefit from our extensiveexperience collaborating with multinational corporations and top-tier factories. Our independent R&D center andapplication laboratory innovate with 11 patents and 4 usage patents.
Count on us for high-quality products and customized formulations to meet diverse customer needs.
Why Choose LANDU?
Stable Quality for Production
Consistent additive performance helps manufacturers maintain formulation stability between batches.
Technical Support for Formulation Development
LANDU provides grade recommendations based on raw materials, application requirements and production conditions.
Complete Additive Portfolio
From cellulose ether to RDP and specialty additives, LANDU supports complete solutions for self-leveling compound production.
Handling Large Volume Orders
Global Shipping and Delivery Solutions
Landercoll Other Products
FAQ
Self-leveling compounds typically use cellulose ether, PCE, RDP, defoamer and rheology modifiers to achieve proper flow and stability.
LANDU provides LANDERCOLL® cellulose ether, Accurate® RDP and NOVASTAR™ specialty additives for different self-leveling formulations.
Yes. LANDU supports sample evaluation to help customers select suitable additives for their formulations.